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Rockville

MS40B Black 4" Marine Speakers + NA2-400.2 Amplifier Bundle

MS40B Black 4" Marine Speakers + NA2-400.2 Amplifier Bundle

4" IP56 Marine Speakers, 200W Pair, 2-Channel 400W Amp, Black Pods, Swivel Clamps

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Regular price $209.89
Sale price $209.89 Regular price $0.00
Features
    • IP56 speakers for salt and fresh water
    • 200W per pair peak, 50W RMS per pair
    • Aluminum swivel pods with black powder coat
    • MB Quart 2-channel marine amplifier
    • All clamps, inserts, and hardware included
    • Pair Rockville MS40B 4" marine speakers (Black)
    • Pair Rockville MAC40B 4" aluminum swivel pods
    • MB Quart NA2-400.2 2-channel amplifier
    • Rubber clamp inserts (3/4"–1.5") and brackets
    • Mounting hardware and wiring pigtails

SKU: SKU: MS40B+40KMMTES+NA2-400.2

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Product Description

Built to thrive on the water or trail, this bundle pairs compact 4" IP56 marine speakers with rugged aluminum swivel pods and a 400W 2‑channel marine amplifier. Add punchy, clear sound to ATVs, UTVs, boats, and carts with weather-ready components and clean internal wiring. The black powder‑coat finish and sealed design resist UV, moisture, and vibration, while swivel clamps let you aim sound where it matters. A confident, space‑saving upgrade for refined outdoor audio.

Features

    • Weather-Ready Audio

      IP56 speakers and marinized aluminum pods resist UV, water, and corrosion for reliable performance on boats, ATVs, and carts.

    • Clean, Focused Sound

      Injection‑molded cones and PEI tweeters deliver crisp highs and balanced mids for clear playback at speed or anchor.

    • Compact Power

      Full‑range Class D 2‑channel amp supplies stable output with low heat, maximizing volume without consuming space.

    • Flexible Mounting

      360° swivel clamps and multiple inserts fit 3/4"–1.5" bars, letting you aim sound precisely and secure a tight, rattle‑free fit.

    • Durable Build

      6061 aluminum pods with black powder coat resist chips and fading, preserving sharp aesthetics season after season.

Technical Specifications

  • Product Type 4" marine speaker and amplifier bundle
  • Speaker Power (Peak/Pair) 200 W
  • Speaker Power (RMS/Pair) 50 W
  • Impedance 4 ohm
  • Frequency Response 122 Hz–20 kHz
  • Sensitivity 85 dB @1W/1m
  • Waterproof Rating IP56

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